1 & 3 Please 1. Define the terms diene and dienophile as they apply to the...
Question 2&3 Post-Lab: Experiment 9 1. Define the terms diene and dienophile as they apply to the Diels-Alder reaction Based on the amount of cyclopentadiene you used, how many grams is this? 2. The cyclopentadiene collected from the retro-Diels-Alder reaction must be kept cooled and used fairly soon. Why? 3. 159 Experiment 9 Cycloadditions: The Dieis-Alder Reaction Lab Report: Experiment 9 Preparation of the Adduct Molecular Weight Reagent Grams Moles 6l6-105 0.076 0.05l Cyclopentadiene S1 maleic Anhydride Maleic anhydride The...
Questions 1. Why does the trans conformation of a diene, in reaction with a dienophile, not lead to a Diels-Alder reaction product? 2. Complete the following Diels-Alder reactions. Provide the major endo-product(s). Dienophile Product(s) 3. How many i electrons are there in a molecule of 1,3-butadiene?
3. Write the structures of the diene and dienophile that would form each of the products shown via a Diels- Alder reaction. 4 COCH3 ) II CO2CH3
3. Write the structures of the diene and dienophile that would form each of the products shown via a Diels-Alder reaction. CO₂CH₃ CO CHE
1. Draw in the structure of a diene and a dienophile that would do the Diels-Alder reaction. The diene should contain one (E)-alkene and the dienophile should contain one ester. Major Product heat 2. Draw the major product in the box. Indicate stereochemistry with dashes and wedges. If the compound is racemic, write "+/-", and if it is meso, indicate this. 3. Are there any other regioisomers that could form in this reaction? Explain. 4. Are there any other stereoisomers...
Forward and Retro Diels-Alder Post-Lab Questions: Someone please help me with 3 or 4! My lab is a couple of chapters ahead of the lecture for it so it is very confusing!! I ldille. Forward and Retro Diels-Alder Post-Lab Questions: 3. Provide the appropriate product(s) for each of the following Diels-Alder reactions. Your answers must be stereospecific: HEC Heat CH2CH3 Heat CHO 4. Provide the appropriate starting materials (diene and dienophile) for the following Diels-Alder reactions: CH2CH3 CH2CH3 Heat CO_CH3...
Diels-Alder CN Reaction CN diene dienophile D. 1. 03, -78°C "H H' 2. Zn/H2O 4. Circle all aromatic compounds: (2 points)
Post- Laboratory Questions: 1. Draw the product of the following Diels-Alder reactions 2. What starting materials would be used to prepare the following compound by the Diels- Alder reaction? 3. Cyclopentadiene dimerizes easily. Before using cyclopentadiene in a reaction, it is necessary to crack the diene. Draw the Diels-Alder reaction for the dimerization of cyclopentadiene. 4. What are the products of the following Diels-Alder reactions? Show the stereochemistry where applicable
1.Calculate the value of the percent atom economy for each Diels Alder reaction: 2. In the Diels Alder reaction a cyclohexene is created by the combination of a diene and dienophile. How many pi bonds are made in the Diels Alder reacion? How many sigma bonds are made in Diels Alder reacion? How many pi bonds are destroyed (changed) in the Diels Alder reaction? Reaction 1&2 sillo Reaction 3&4 - oi d. por lo Reaction 5&6
5-methylfuran-2(5H)-one is an alcohol/water sensitive compound. in the presence if an alcohol, it undergoes a process known as transesterification. draw the structure of transesterified 5-methylfuran-2(5H)-one. PLEASE HELP WITH QUESTION 1&2!!! Forward and Retro Diels-Alder Post-Lab Questions: 1. 5-methylfuran-2(5H)-one (see below) is an alcohol/water sensitive compound. In the presence of an alcohol, it undergoes a process known as transesterification. Draw the structure of transesterified 5- methylfuran-2(5H)-one: CH3OH Transesterification 2. If the reaction vessel were exposed to methanol during the course of...